About this 3D model

#####Printable flexible helicals are the common theme throughout this #backtoschool collection. 1. A helical pencil case with rotatable lid that prints in place. 2. A helical pencil topper with pocket clip. 3. A 15cm ruler that has helical based marking annotation. (What? Dunno see for yourself.) These would be perfect printed with flexible filament, although as you can see, printed in PLA still gives great results. Prints without support. Here is a video of it flexing its muscles http://youtu.be/ISO03-e7ayY Helicals everywhere!